BUEC 232 Lecture Notes - Lecture 4: Pie Chart, Bar Chart, Coproduct

• School: Simon Fraser University
• Department: Business Economics
• Course: BUEC 232
• Professor: Andrew Flostrand

Document Summary

George taylor"s hemline index: spurious correlation. Numerical descriptive measures: should document both good and bad results, should be presented in a fair, objective, and neutral manner, should not use inappropriate summary measures to distort facts. Summary table: presents one categorical variable: variables are categorical, ex) current investment portfolio. Tabulating and graphing multivariate categorical data bar charts: clustered-column bar chart, stacked-column bar chart, mainly for one variable rather than pie chart. Tabulating and graphing multivariate categorical data pie charts (?: clustered pies: use relative size to signify the categorical sum. Pie: requires a bit of work to make sense . Pareto diagram example on slide will be a possible question on the midterm. Ordered array: sequence of numerical data in rank order: shows range (min to max, provides some signals about variability within the range, may help identify outliers (unusual observations, smallest to largest. If the data set is large, the ordered array is less useful.